Two parts that make up a viruses
Dna or Rna & protein
Where does a virus get its energy
protein shell, jacket around core, shape of virus
nucleo acid and capsid together
Shapes of viruses
icosahedral, helical/rod, envelope/spherical,
What is in the core of the virus
DNA or RNA
virus that infects bacteria
bacteriophage thats harmless to host
virus that carries genetic material from 1 cell to another
virus does not cause disease
single strand of RNA w/ no surrounding capsid
partical composed only of protein
Prions can cause ..
mad cow disease
contains only RNA
virus attaches to host cell @ receptor site
virus injects nucleic acid into host cell
viral genes take over to direct the cell to make viral DNA & viral protein
new viruses are put together
viral enzyme breaks down cell wall of bacterial cell to release new viruses
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